Does anyone know the difference between the 5 and 10 KW Diesel generators ? This is the air cooled 2 and 4 cylinder . I am currious as to look at them the only difference is the engines and one skid is longer to accomedate the longer block . I am interested because I have a new 10 K engine and a complete 5 K unit . I've been looking for a 10 K with a bad engine but I got a deal on a 5 K unit . Bottom line is : Can I swap the 4 cyl for the 2 cyl and thus have the 10 K I want ?